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DETEXI Archive Viewer

— Access NVR Video Archive — DETEXI Archive Viewer —

Access NVR Video Archive

DETEXI Archive Viewer

When large amount of video need to be scanned for events the Archive Viewer is the tool of choice.Rather than loading a collection of video into local memory, the Archive Viewer streams video directly from the NVR archive over the network. For this reason, a full 24 hours of data is at the user’s fingertips for viewing at all times without requiring a large initial load time. However, this limits user to slower possible playback speed — completely dependent upon the network connection between the Archive Viewer and NVR archive. It is not uncommon to see pauses in video playback for buffering of the video stream.

To search and retrieve a recorded video —

Select Camera and Date

Video Bar Graph, Select Time

Playback, Export

Compression

Launch Archive Viewer.

Under the Choose NVR and Camera select the NVR to connect to from the NVR list. Once connected, the Server list will be populated with the cameras / video encoders that currently have a recorded video.

Select the camera of interest from the Server list. The Alarm checkbox can be checked before the selection in order to search for alarm video only.

If a video encoder is specified select a video input of interest from the Video list.

When the camera is selected, the Date list will automatically be populated with all dates containing recorded video for the selected camera. Choose the date of interest.

Press Load button — the Video Bar Graph and the Time list will both be populated with data indicating when video for the date and camera selected was recorded.

DETEXI Archive Viewer included automatically with the DETEXI NVR and Remote DETEXI Client installation connects local and/or remote users to the DETEXI NVR recorded video (NVR archive) for video viewing, retrieval and export.

For remote users permission/authentication is required. Use credentials you would normally use in the DETEXI Client.

When located on the NVR computer, the Archive Viewer is very efficient — limited only by the read speed of the hard drive and decoding speed of the video card.

Video Bar Graph indicates the existence of archived video based on the time of day. Each bar equating to one minute in time. The color of the bar at any given time indicates the category of video recorded: blue — continuous recording, yellow — recording on motion detected.

A combination of solid blue and yellow bars is seen when a Continuous Recording with Motion Detection schedule is configured.

The height of each bar indicates how much video (of the given category) was recorded in that minute.

Select a minute of interest from the Time list (the position arrow moves to that time) — the first frame of that minute video will be loaded; or drag and drop directly the position arrow on the time line.

Use playback control panel to play video forward and backward, stepping one frame forward and backward, and jumping to the beginning and end of the selected video.

Playback control panel from left to right —
- First frame in the current minute – jump to the first frame in the currently selected minute.
- One frame back – step one frame backward in time.
- Play backward – play the video backward from the current position.
- Play forward – play the video forward from the current position.
- Pause – pause the video in the current position.
- Stop playing – stop the video playback.
- One frame forward – step one frame forward in time.
- Last frame in the current minute – jump to the last frame in the currently selected minute.
- Record (export video) – record video in AVI format from the current position until the playback is stopped, at the selected speed (FPS).

Use the speed slider at the bottom left to adjust the playback/recording rate in FPS (Frames Per Second).

When you click red Record button you will be asked to define filename and path for the exported video. The video file is available immediately after the recording was stopped in the directory that you defined. This file can then be viewed in a media viewer such as Windows Media Player, or distributed to other personnel.

Users can keep track of video time by watching the clock in the bottom right corner. This clock follows the time of the video, as stamped on the files by the NVR archive.

The primary function of the DETEXI NVR is to record video, for search and replay at a later date. When video of importance is found in the NVR archives, it is often necessary to be able to export that video in a universal format for distribution to management, the police, or other authority.

Before exporting retrieved video, it is important to consider the size of the resulting file, to be sure that it can be delivered in an acceptable way. Uncompressed video can result in a very large file such as 1GB for only 2 or 3 minutes of video.

How to compress exported video —

Before exporting video, right-click on the red Record button and choose the desired compression type from the right-click menu.

Press red Record button to start recording.

Continue as usual.

Be aware that applying compression to video is often considered changing the video from its original form, and can potentially prevent the video from being used in prosecution.